And if your company doesn't offer you Seamless...

Try ordering from Eat24. The company was recently bought by Yelp and has a lot of restaurants that you'd also find on Seamless. Plus, they have a ton of weekend coupons.

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Don't even try to doing laundry yourself.

NBC/"Seinfeld"

Send it out instead.

If you live in a building that doesn't have a washer and dryer in-house (which is pretty common in NYC), the amount of time, effort, and money you will spend trekking to and from the laundromat, sack in hand, is simply not worth it.

In many neighborhoods, it doesn't cost much more to pay your local laundromat to wash your clothes for you.

Or, try Fly Cleaners. They pick up your laundry, clean it, and drop it off for free if your order is over $15, and they have a handy app.

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Do not waste all your money at the gym.

But don't worry, if you want to keep on top of that Seamless belly, there are cheaper gyms out there.

Blink is actually owned by Equinox and has all the machines you'd ever need. They skimp on showers and classes, but who needs that anyway? Memberships range from $15-$25 a month and are monthly, so you won't get stuck paying for a full year while you're only here for the summer.

Planet Fitness is another good deal - $10/month for a single gym; $20 for all-access and perks like tanning, guest privileges and massage chairs.

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Or maybe the gym isn't your thing?

Reuters

If you're up early enough, try The Rise NYC for free outdoor yoga, running and bootcamp classes starting around the city at 6:30 a.m.

Or check out Yoga to the People, which offers Vinyasa and hot yoga classes around the city. No fees, but donations of $10/class are recommended.

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"Cook dinner" – without really cooking dinner.

Blue Apron sends you all the ingredients you need to cook a healthy meal - in just the right proportions (for 2, 4, or 6 people). Once a week, they deliver a box with food and recipes for each meal. It costs about $10/meal.

∙ Calle Ocho on the Upper West Side serves unlimited sangria and no time limit (within reason) with any brunch entree (ranging from $19-$33).

∙ If you ever feel like pizza in the morning, head over to L'Asso, where the $25 brunch special gets you an entree and all-you-can-drink bloody mary's or mimosas for one hour.

∙ For Southwestern brunch, try Agave, where they have a $32.99 brunch special that includes bottomless mimosas, wine or Agave margaritas for two hours.

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Sign up for Groupon and Living Social — and actually pay attention to their emails.

Tomas Bravo / Reuters

When you want to pamper yourself on a day that's not your birthday (and don't feel like spending $500), try Groupon or Livingsocial. Both websites offer great deals daily for anything from spa treatments, helicopter rides, to dance classes.

Find your happy place.

New York City is overwhelming, and it's easy to feel lost here. Don't try to experience the whole city in one summer. Instead, find a few special places and activities that make you happy, and own them.

Get to know your dry cleaner, your local barista, and the shawarma guy on your corner. It'll make you feel more at home.

Find the nearest happy hour ASAP.

Get a phone charger case for when your battery inevitably fails.

Try the Trianium case, which adds 100 percent charge for your phone and lifetime warranty, or an external charger for multiple charges. The Anker 2nd gen Astro mini gives one full charge, or try the Anker 2nd gen Astro E5 for five to six charges.

Download all of the transit apps.

Google maps is a good start, but add on iTrans, and you're in business. Let the app gather intel on delays and schedules for trains, and you'll spend less time on the platform.

If you have Citibike, using their app can help you quickly figure out where you can ride or dock.

Ever stand in the middle of the sidewalk hearing the subway beneath your feet, and wonder "I can feel it, I can see it on the map, so where is it!?"

Try Exit Strategy, aptly named for the level of panic induced from finding subway exits. It'll tell you where to go, as well as where you should stand on a platform so you can be closest to the exit at your destination.

Find a free laugh.

Make sure you get your Vitamin D.

Try outdoorfest for a series of free kayaking, fishing and other group events. The Downtown Boathouse also offers free kayaking. The High Line can be a great walk during the day — but have you tried sky gazing?

Hudson River is another great resource for free activities outdoors, from fishing, to movies, just try their website.